<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch">
      <el-form-item label="年级" prop="gid">
        <el-select v-model="queryParams.gid" placeholder="请选择年级" style="width:100%">
          <el-option v-for="dict in gradesList" :key="dict.gid" :label="dict.gradeName" :value="dict.gid"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="学科" prop="disciplineName">
        <el-input v-model="queryParams.disciplineName" placeholder="请输入学科名称" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd" v-hasPermi="['system:discipline:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="success" plain icon="el-icon-edit" size="mini" :disabled="single" @click="handleUpdate" v-hasPermi="['system:discipline:edit']">修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="danger" plain icon="el-icon-delete" size="mini" :disabled="multiple" @click="handleDelete" v-hasPermi="['system:discipline:remove']">删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="warning" plain icon="el-icon-download" size="mini" @click="handleExport" v-hasPermi="['system:discipline:export']">导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="disciplineList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="年级" align="center" prop="gid">
        <template slot-scope="scope">
          {{selectDictLabel(gradesList,scope.row.gid,"gid","gradeName")}}
        </template>
      </el-table-column>
      <el-table-column label="学科名称" align="center" prop="disciplineName" />
      <el-table-column label="必修或者选修" align="center" prop="disciplineStatus">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.discipline_is_must" :value="scope.row.disciplineStatus"></dict-tag>
        </template>
      </el-table-column>
      <!-- <el-table-column label="属于哪一科" align="center" prop="division" /> -->
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)" v-hasPermi="['system:discipline:edit']">修改</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)" v-hasPermi="['system:discipline:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" :page.sync="queryParams.pageNum" :limit.sync="queryParams.pageSize" @pagination="getList" />

    <!-- 添加或修改学科对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="100px">
        <el-form-item label="年级" prop="gid">
          <el-select v-model="form.gid" placeholder="请选择年级" style="width:100%">
            <el-option v-for="dict in gradesList" :key="dict.gid" :label="dict.gradeName" :value="dict.gid"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="学科名称" prop="disciplineName">
          <el-input v-model="form.disciplineName" placeholder="请输入学科名称" />
        </el-form-item>
        <el-form-item label="必修或选修" prop="disciplineStatus">
          <el-select v-model="form.disciplineStatus" placeholder="请选择必修或者选修" style="width:100%">
            <el-option v-for="dict in dict.type.discipline_is_must" :key="dict.value" :label="dict.label" :value="Number(dict.value)"></el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listDiscipline, getDiscipline, delDiscipline, addDiscipline, updateDiscipline } from "@/api/system/discipline";
import { listGrades } from "@/api/system/grades";
export default {
  name: "Discipline",
  dicts: ["discipline_is_must"],
  data() {
    return {
      gradesList: [],
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 学科表格数据
      disciplineList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        gid: null,
        tid: null,
        disciplineName: null,
        disciplineStatus: null,
        division: null,
        isDelete: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        disciplineName: [
          { required: true, message: '请输入学科名称', trigger: 'blur' },
        ],
      }
    };
  },
  created() {
    this.getList();
    this.getGradesList()
  },
  methods: {
    /** 查询年级列表 */
    getGradesList() {
      listGrades({ pageNum: 1, pageSize: 100 }).then(response => {
        this.gradesList = response.rows;
      });
    },
    /** 查询学科列表 */
    getList() {
      this.loading = true;
      listDiscipline(this.queryParams).then(response => {
        this.disciplineList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        did: null,
        gid: null,
        tid: null,
        disciplineName: null,
        disciplineStatus: null,
        division: null,
        createBy: null,
        createTime: null,
        isDelete: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.did)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加学科";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const did = row.did || this.ids
      getDiscipline(did).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改学科";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.did != null) {
            updateDiscipline(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addDiscipline(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const dids = row.did || this.ids;
      this.$modal.confirm('是否确认删除学科编号为"' + dids + '"的数据项？').then(function () {
        return delDiscipline(dids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => { });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/discipline/export', {
        ...this.queryParams
      }, `discipline_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
